Security Bug Report - Unauthenticated setup-wizard hash fixation mints and exfiltrates victim organization auth tokens

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A new security bug report has been reported by the bug bounty program.

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Claude Analysis Result

Possible code path of the root cause: /src/sentry/api/endpoints/setup_wizard.py
Possible reason: The report explicitly targets the setup-wizard flow, specifically the endpoints GET /api/0/wizard/ and GET /api/0/wizard/<hash>/, as well as the frontend page /settings/wizard/<hash>/. The CODEOWNERS file has two explicit entries for these: /src/sentry/web/frontend/setup_wizard.py @getsentry/team-javascript-sdks and /src/sentry/api/endpoints/setup_wizard.py @getsentry/team-javascript-sdks. The vulnerability is entirely within the setup wizard's hash allocation, cache population, and token leakage logic, which maps directly to these files owned by team-javascript-sdks.
Possible owner: @getsentry/team-javascript-sdks

Confidence score: 95

** If you believe the issue is incorrectly assigned, please assign it to the correct team or let the security team know. Thank you!**

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To reduce risk of accidental information disclosure, we are intentionally not exposing full vulnerability details here
Please see the parent ticket for the full report: VULN-1424

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JS-2052